Heading 2923
HTS code 2923 — Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined
- Chapter
- 29 — Organic chemicals
- Tariff lines
- 7
- General duty
- General duty rates from 3.7% to 6.2%, with 1 duty-free line
Tariff lines under heading 2923
Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.
| HTS code | Description | General rate | Unit |
|---|---|---|---|
| 2923.10.0000 | Choline and its salts (Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined) | 3.7% | kg |
| 2923.20.1000 | Purified egg phospholipids, pharmaceutical grade meeting requirements of the U.S. Food and Drug Administration, for use in intravenous fat emulsion (Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined > Lecithins and other phosphoaminolipids) | Free | kg |
| 2923.20.2010 | Certified organic lecithins (Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined > Lecithins and other phosphoaminolipids > Other) | 5% | kg |
| 2923.20.2050 | Other (Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined > Lecithins and other phosphoaminolipids > Other) | 5% | kg |
| 2923.30.0000 | Tetraethylammonium perfluorooctane sulfonate (Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined) | 6.2% | kg |
| 2923.40.0000 | Didecylmethylammonium perfluorooctane sulfonate (Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined) | 6.2% | kg |
| 2923.90.0100 | Other (Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined) | 6.2% | kg |
Documents required to import under 2923
Customs paperwork typically required to import these goods into the United States. Conditional items depend on shipment value, transport mode, or origin.
- Commercial InvoiceRequired
- Packing ListRequired
- Bill of Lading / Airway BillRequired
- CBP Entry Summary (7501)Required
Prepared and filed by your customs broker
- CBP Entry / Release (3461)Required
Prepared and filed by your customs broker
- Customs Bond (CBP 301)Conditional
Required for formal entries — generally shipments valued over $2,500
Single-entry or continuous bond, obtained through your broker or a surety
- Importer Security Filing (ISF "10+2")Conditional
Required for ocean freight only
Filed electronically at least 24 hours before loading at the foreign port
- Importer ID Input Record (CBP 5106)Conditional
Required to establish or update your importer-of-record number with CBP
One-time setup for a new importer; not filed per shipment
- Entry Manifest (CBP 7533)Conditional
Alternative to the 3461 for informal, low-value, or contiguous-country entries
- Safety Data Sheet (SDS/MSDS)Required
- EPA TSCA CertificationConditional
Required for chemical substances regulated under TSCA
- EPA Notice of Arrival (Form 3540-1)Conditional
Required for pesticides and devices (typically Ch. 38)
Common questions
- What is HTS code 2923?
- HTS heading 2923 covers quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined. It sits in Chapter 29 (organic chemicals) of the US Harmonized Tariff Schedule and contains 7 tariff lines.
- What is the duty rate for HTS 2923?
- General duty rates from 3.7% to 6.2%, with 1 duty-free line. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.
- How many digits does a full HTS code have?
- US import entries require the full 10-digit HTS code. Heading 2923 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.
Related headings in Chapter 29
- 2901Acyclic hydrocarbons
- 2902Cyclic hydrocarbons
- 2903Halogenated derivatives of hydrocarbons
- 2904Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated
- 2905Acyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives
- 2906Cyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives
- 2907Phenols; phenol-alcohols
- 2908Halogenated, sulfonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols